Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6931933 | Pressure sensing apparatus | — | 2005-08-23 |
| 6823936 | Fluid flow control apparatus | — | 2004-11-30 |
| 6817416 | Flow control device | Christopher R. King | 2004-11-16 |
| 6494265 | Flow control device | Christopher R. King | 2002-12-17 |
| 5860477 | Underwater oil field apparatus | David Pearce | 1999-01-19 |
| 5621172 | Method and apparatus for testing material strengths | Milo L. Clauson | 1997-04-15 |
| 5169262 | Line marking apparatus | Robert J. Milligan, Alan J. Loughron | 1992-12-08 |
| 5054959 | Line marking apparatus | Robert J. Milligan, Alan J. Loughron | 1991-10-08 |
| 4752385 | Liquid chromatograph | — | 1988-06-21 |
| 4726657 | Optical wavelength selective devices having rigid support structure | Charles V. Perkins | 1988-02-23 |
| 4613233 | Sine bar mechanism and monochromator and spectrophotometer including such a sine bar mechanism | — | 1986-09-23 |